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GE SR489-CASE Generator Protection System Module

  • Warranty: 365 days

    Quality: Original module

    Condition: New / Used

    Warehouse: Spot

    Delivery time: Shipped in 3 days after payment


    Mail: 3598571032@qq.com

    Phone/Wechat/Whatsapp:+86 15339539190

  • Details

GE SR489-CASE is a generator protection system module of the SR489 model in GE's Multilin series. The following is an introduction to its specifications, application scenarios, and operating principles:
  • Specifications
    1. Input capacity: Up to 5A CT secondary side.
    2. Output type: 4-20mA low-voltage analog output.
    3. Power supply compatibility: 20-60VDC, 20-48VAC @ 48-62Hz.
    4. Communication interface: 10Base-T Ethernet.
    5. Operating temperature range: -40°C to +60°C.
    6. Humidity tolerance: Up to 95% non-condensing.
    7. Accuracy: Total time ±0.5%.
    8. Trip time accuracy: ±50ms at 50/60Hz.
  • Application scenarios
    1. Power plants: Used to protect generator sets and ensure power quality.
    2. Industrial power generation: Suitable for self-owned power generation systems in factories or enterprises.
    3. Marine power generation: Applicable to generator sets on ships.
    4. Data centers: Capable of providing protection for the power supply in data centers.
    5. Oil and gas industry: Suitable for power systems in this industry.
    6. Transportation: Can be used in power systems in the transportation field.
    7. Distributed energy systems: Can be used for the integration of renewable energy sources such as wind and solar energy.
  • Operating principles
    • Protection function principle: It detects and clears stator phase faults through high-speed dual-slope differential protection, and uses an advanced CT saturation detection algorithm to ensure that tripping is triggered only when the fault is inside the generator. 100% stator ground fault protection is achieved through an overvoltage component and an adaptive voltage difference function, which compares the machine's neutral point voltage and ground current to determine the location of the ground fault. In addition, it has functions such as backup phase distance protection, sensitive directional power protection, and circuit breaker fault protection. When a corresponding fault is detected, it sends a signal to upstream equipment through the configured digital output to quickly isolate the fault.
    • Monitoring and control principle: It monitors the operating parameters of the generator such as voltage, current, frequency, power factor, and vibration, as well as the status of external contacts, tachometers, and control switches through multiple analog input and digital input interfaces. When the monitored parameters exceed the safe range, the module can trigger corresponding protection actions such as disconnecting the power supply or activating an alarm according to the preset logic. At the same time, the module supports communication with external devices through communication interfaces such as RS232, RS485, and 10BaseT Ethernet, using protocols such as Modbus RTU, Modbus TCP/IP, and DNP 3.0 to realize remote monitoring and data transmission.
      Main products:

      Covering globally renowned brands:

      Bently Nevada, Triconex, Woodward, Foxboro, Westinghouse, Reliance, Schneider Modicon, ABB, Allen-Bradley, Motorola, GE Fanuc, Yaskawa, Bosch Rexroth, ACSO, Yokogawa, Rexroth, NI, ICS Triplex, Kollmorgen, Mitsubishi, MOOG, Emerson, B&R, Alstom, EPRO, HIMA, Honeywell, Prosoft, AMAT, Siemens, etc.

      Product categories include: DCS system accessories, robot system spare parts, large servo system spare parts, etc., widely used in power, chemical, metallurgy, intelligent manufacturing and other fields.


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